21651714

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{227}}^1\times {\mathrm{757}}^1$

素因数の和:999

約数の個数: 48

約数和(自身を含む): 53921088

約数和(自身を除く): 32269374

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 227, 454, 681, 757, 1362, 1514, 1589, 2043, 2271, 3178, 4086, 4542, 4767, 5299, 6813, 9534, 10598, 13626, 14301, 15897, 28602, 31794, 47691, 95382, 171839, 343678, 515517, 1031034, 1202873, 1546551, 2405746, 3093102, 3608619, 7217238, 10825857, 21651714]

約数ペア:

[(1, 21651714), (2, 10825857), (3, 7217238), (6, 3608619), (7, 3093102), (9, 2405746), (14, 1546551), (18, 1202873), (21, 1031034), (42, 515517), (63, 343678), (126, 171839), (227, 95382), (454, 47691), (681, 31794), (757, 28602), (1362, 15897), (1514, 14301), (1589, 13626), (2043, 10598), (2271, 9534), (3178, 6813), (4086, 5299), (4542, 4767)]